Move error check for missing Portfile so that we don't add to the open_dports list a port that we'll later fail on -- but maybe we should move the append to the open_dports list to very end in case we error out while eval'ing the Portfile?
Move error check for missing Portfile so that we don't add to the open_dports list a port that we'll later fail on -- but maybe we should move the append to the open_dports list to very end in case we error out while eval'ing the Portfile?

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@15872 d073be05-634f-4543-b044-5fe20cf6d1d6

danchr/macports-base,neverpanic/macports-base,macports/macports-base,macports/macports-base,danchr/macports-base,neverpanic/macports-base